542 search results - page 4 / 109 » An Effective SPARQL Support over Relational Databases |
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
Ontology, an explicit specification of shared conceptualization, has been increasingly used to define formal data semantics and improve data reusability and interoperability in en...
EDBT
2012
ACM
11 years 11 months ago
2012
ACM
Query optimization in RDF Stores is a challenging problem as SPARQL queries typically contain many more joins than equivalent relational plans, and hence lead to a large join orde...
KDID
2004
13 years 10 months ago
2004
Abstract. Database systems are islands of structure in a sea of unstructured data sources. Several real-world applications now need to create bridges for smooth integration of semi...
SIGMOD
2007
ACM
14 years 8 months ago
2007
ACM
The wide popularity of free-and-easy keyword based searches over World Wide Web has fueled the demand for incorporating keyword-based search over structured databases. However, mo...
WEBDB
2010
Springer
13 years 6 months ago
2010
Springer
The Semantic Web, which represents a web of knowledge, offers new opportunities to search for knowledge and information. To harvest such search power requires robust and scalable ...